CA2057650A1 - Fail safe obstruction detector for door openers - Google Patents

Fail safe obstruction detector for door openers

Info

Publication number
CA2057650A1
CA2057650A1 CA2057650A CA2057650A CA2057650A1 CA 2057650 A1 CA2057650 A1 CA 2057650A1 CA 2057650 A CA2057650 A CA 2057650A CA 2057650 A CA2057650 A CA 2057650A CA 2057650 A1 CA2057650 A1 CA 2057650A1
Authority
CA
Canada
Prior art keywords
code
signal
transmitter
receiver
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2057650A
Other languages
French (fr)
Other versions
CA2057650C (en
Inventor
Dennis W. Waggamon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GMI Holdings Inc
Original Assignee
GMI Holdings Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GMI Holdings Inc filed Critical GMI Holdings Inc
Publication of CA2057650A1 publication Critical patent/CA2057650A1/en
Application granted granted Critical
Publication of CA2057650C publication Critical patent/CA2057650C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to mechanical injury, e.g. rupture of line, breakage of earth connection
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
    • E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/43—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound
    • E05F2015/434—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors
    • E05F2015/435—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors by interruption of the beam
    • E05F2015/436—Detection using safety edges responsive to disruption of energy beams, e.g. light or sound with cameras or optical sensors by interruption of the beam the beam being parallel to the wing edge
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F2015/487—Fault detection of safety edges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/45—Mounting location; Visibility of the elements in or on the fixed frame
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/106—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for garages

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Optical Communication System (AREA)
  • Lock And Its Accessories (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The light beam in an obstruction detector is coded into packets of pulses by a transmitter. When the light beam is received, the receiver recovers the code signal and supplies it to a code detection circuit. To detect the code, the circuit supplies the code signal and a delayed version of the code signal to an "exclusive or" gate. If the code is present, the gate produces a pulsed output resulting in a "safe" signal being sent to a door opener control circuit. If no code is present, the gate produces a relatively constant output resulting in an "unsafe" signal being sent to the door opener circuit. The "unsafe" signal is produced not only in response to obstructions, but also, in response to errors and malfunctions in the wiring to the transmitter and receiver and in the transmitter and receiver themselves. <IMAGE>
CA002057650A 1991-02-25 1991-12-13 Fail safe obstruction detector for door openers Expired - Lifetime CA2057650C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66004291A 1991-02-25 1991-02-25
US660,042 1991-02-25

Publications (2)

Publication Number Publication Date
CA2057650A1 true CA2057650A1 (en) 1992-08-26
CA2057650C CA2057650C (en) 1998-10-13

Family

ID=24647887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002057650A Expired - Lifetime CA2057650C (en) 1991-02-25 1991-12-13 Fail safe obstruction detector for door openers

Country Status (4)

Country Link
EP (1) EP0501858B1 (en)
AT (1) ATE145303T1 (en)
CA (1) CA2057650C (en)
DE (1) DE69215127T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3234530B2 (en) * 1996-04-26 2001-12-04 株式会社ナブコ Self-diagnosis device for door sensor
JP3352911B2 (en) * 1996-05-17 2002-12-03 株式会社ナブコ Self-diagnosis device of automatic door device
DE102012104750A1 (en) * 2012-06-01 2013-12-05 Ingo Reusch Device for contact-free opening of door in public toilet, has sensor device generating signal during non-contact approach of human hand, where signal is provided to activate electrical motor for opening door for predetermined time interval

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007840C3 (en) * 1970-02-20 1979-11-15 Endl, Alfons, 8000 Muenchen Light barrier
DE9006605U1 (en) * 1990-06-12 1990-08-16 Brinkmann, Heinz-Jürgen, 4322 Sprockhövel Circuit monitoring on movable closing edges

Also Published As

Publication number Publication date
EP0501858A3 (en) 1993-03-31
EP0501858B1 (en) 1996-11-13
DE69215127T2 (en) 1997-05-22
EP0501858A2 (en) 1992-09-02
DE69215127D1 (en) 1996-12-19
CA2057650C (en) 1998-10-13
ATE145303T1 (en) 1996-11-15

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry